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newtype.h
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29 
30 #pragma once
31 
32 namespace LeechCraft
33 {
34 namespace Util
35 {
55  template<typename T, size_t, size_t>
56  class NewType : public T
57  {
58  public:
59  using T::T;
60 
61  NewType (const T& t)
62  : T { t }
63  {
64  }
65  };
66 
67  namespace detail
68  {
69  constexpr size_t NewTypeHash (const char *str)
70  {
71  const auto basis = 14695981039346656037ULL;
72  const auto prime = 1099511628211ULL;
73  size_t hash = 0;
74  auto value = basis;
75  for (size_t i = 0; str [i]; ++i)
76  {
77  hash += value;
78  value = (value ^ str [i]) * prime;
79  }
80  return hash;
81  }
82  }
83 }
84 }
85 
86 #define NewTypeTag LeechCraft::Util::detail::NewTypeHash(__FILE__), __LINE__
constexpr size_t NewTypeHash(const char *str)
Definition: newtype.h:69
NewType(const T &t)
Definition: newtype.h:61
A somewhat "strong" typedef.
Definition: newtype.h:56